CAS 142-45-0; 丁炔二酸; Acetylen-dicarbonsαure

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规格

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A801123

MACKLIN

丁炔二酸

98%

106元/5g; 492元/25g; 1126元/100g;

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储存：2~8°C
状态：白色到米黄色粉末或晶体

A0088

TCI

Acetylenedicarboxylic Acid

>90.0%(HPLC)

190元/5G; 685元/25G;

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基本信息

纯度/分析方法	>90.0%(HPLC)
分子式/分子量	C₄H₂O₄ = 114.06
外观与形状(20℃)	固体
储存温度	0-10℃
储存在惰性气体下	存放于惰性气体之中
应避免的情况	空气,加热
Reaxys-RN	878357
PubChem物质ID	87561785
SDBS (AIST Spectral DB)	3689
MDL编号	MFCD00004362

技术规格

Appearance	White to Light yellow to Light orange powder to crystal
Purity(HPLC)	min. 90.0 area%
Purity(Neutralization titration)	min. 95.0 %

物性(参考值)

熔点

178 ℃

安全信息

图形或危害标志
信号词	危险
危险性说明	H301 : 吞咽会中毒。 H314 : 造成严重皮肤灼伤和眼损伤。
防范说明	P501 : 将内装物/容器送到批准的废物处理厂处理。 P260 : 不要吸入粉尘或烟雾。 P270 : 使用本产品时不要进食、饮水或吸烟。 P264 : 作业后彻底清洗皮肤。 P280 : 戴防护手套/穿防护服/戴防护眼罩/戴防护面具。 P303 + P361 + P353 : 如皮肤(或头发)沾染：立即脱掉所有沾污的衣物。用水清洗皮肤/淋浴。 P301 + P330 + P331 : 如误吞咽：漱口。不要诱导呕吐。 P363 : 沾染的衣服清洗后方可重新使用。 P301 + P310 + P330 : 如误吞咽：立即呼叫急救中心/医生。漱口。 P304 + P340 + P310 : 如误吸入：将人转移到空气新鲜处，保持呼吸舒适体位。立即呼叫急救中心/医生。 P305 + P351 + P338 + P310 : 如进入眼睛：用水小心冲洗几分钟。如戴隐形眼镜并可方便地取出，取出隐形眼镜。继续冲洗。立即呼叫急救中心/医生。 P405 : 存放处须加锁。

运输信息

UN编号	UN2923
类别	8 / 6.1
包装类别	II
监管条件代码(*)

404950

J&K

Acetylenedicarboxylic Acid

98%

174元/5G; 623元/25G; 2252元/100G;

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基本信息

分子式	C₄H₂O₄
分子量	114.06
熔点	180-187
闪点	131
MDL编码	MFCD00004362
Beilstein	878357
EINECS 编号	205-536-0
存储条件	Store at 2-8℃

安全信息

图形或危害标志
提示语	Danger
危险说明	H301 H315 H319 H335
防范说明	P261 P301+P310 P305+P351+P338
UN号码	2811
危险分类	6.1
包装等级	III
WGK	3
TSCA	是

A18736

Alfa Aesar

Acetylenedicarboxylic Acid

97%

410元/5g; 1456元/25g; 5308元/100g;

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应用
Acetylenedicarboxylic acid is employed in the preparation of dimethyl acetylenedicarboxylate and potassium hydrogenacetylenedicarboxylate. It is also used as a laboratory reagent. Further, it is used as a precursor in organic synthesis and also serves as a pharmaceutical intermediate.

备注
Air sensitive. Store in a cool place. Incompatible with bases, alkali, reducing agents and oxidizing agents.

基本信息

MDL
MFCD00004362

EINECS
205-536-0

分子式
HO₂CC≡CCO₂H

分子量
114.06

熔点
ca 182° dec.

闪点
131°(267°F)

灵敏度
Keep Cold.

形态
Powder

溶解性
Soluble in diethyl ether and water.

Beilstein
878357

GHS危害和防范说明

GHS符号

Hazard Statements
H300-H310-H330-H314-H318
Fatal if swallowed.Fatal in contact with skin.Fatal if inhaled.Causes severe skin burns and eye damage.Causes serious eye damage.

Precautionary Statements
P301+P310a-P303+P361+P353-P304+P340-P305+P351+P338-P320-P405-P501a
IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower.IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing.IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.Specific treatment is urgent (see label).Store locked up.Dispose of contents/container in accordance with local/regional/national/international regulations.

安全信息

危险等级
6.1

包装组
III

危险类别
23/24/25-34
Toxic by inhalation, in contact with skin and if swallowed.Causes burns.

安全等级
26-27-36/37/39-45
In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.Take off immediately all contaminated clothing.Wear suitable protective clothing, gloves and eye/face protection.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).

TSCA
是

C10252

Alfa Aesar

Acetylenedicarboxylic Acid

98%

1449元/25g; 5184元/100g;

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基本信息

Ref#
10252

MDL
4362

分子式
C4 H2 O4

分子量
114.06

闪点
131

形态
White to cream/pale yellow powder

安全信息

UN#
2811

危险等级
6.1

包装组
III

A15207

Sigma-Aldrich

Acetylenedicarboxylic Acid

95%

520.38元/5 G; 1731.75元/25 G;

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产品说明

应用

乙炔二甲酸一般用于合成其酯类衍生物——乙炔二甲酸二甲酯 (DMAD) 和乙炔二甲酸二甲酯，它们是有机合成中有用的前体。
下面列出了一些常见的应用：

乙炔二甲酸及其酯衍生物可与苯乙酮进行 Cu (I) 催化的自由基加成，生成呋喃衍生物。
它是制备共价有机骨架 (COFs) 和金属有机骨架 (MOFs) 如 IRMOF-0 时使用的最短的线性连接之一。
通过乙炔二羧酸衍生的二芳基炔的氧化环脱氢可以生成各种六芳基苯。
在合成分子链或树枝状聚合物如 2,3,8-三官能团茚并喹喔啉枝晶和双芳基乙炔发色团时，它可以用作间隔基。

包装

5, 25 g in glass bottle

基本信息

线性分子式	HOOCC≡CCOOH
分子量	114.06
Beilstein	878357
EC 号	205-536-0
MDL编号	MFCD00004362
PubChem化学物质编号	24890553
NACRES	NA.22

产品性质

质量水平	200
测定	95%
mp	180-187 ℃ (dec.) (lit.)
储存温度	2-8℃
SMILES string	OC(=O)C#CC(O)=O
InChI	1S/C4H2O4/c5-3(6)1-2-4(7)8/h(H,5,6)(H,7,8)
InChI key	YTIVTFGABIZHHX-UHFFFAOYSA-N

安全信息

象形图
警示用语：	Danger
危险声明	H301 - H315 - H319 - H335
预防措施声明	P301 + P310 + P330 - P302 + P352 - P305 + P351 + P338
危险分类	Acute Tox. 3 Oral - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
靶器官	Respiratory system
储存分类代码	6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
WGK	WGK 3
闪点(F)	267.8 °F
闪点(C)	131 ℃
个人防护装备	Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges

529888

Fluorochem

Acetylenedicarboxylic Acid

98%

2640元/25g; 6600元/100g; 19778元/500g;

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基本信息

CAS Number	142-45-0
MDL Number	MFCD00004362

安全信息

图形或危害标志
危险性说明	H301: Toxic if swallowed. H315: Causes skin irritation. H319: Causes serious eye irritation. H335: May cause respiratory irritation.
防范说明	P233: Keep container tightly closed. P260: Do not breathe . P261: Avoid breathing . P264: Wash hands thoroughly after handling. P270: Do not eat, drink or smoke when using this product. P271: Use only outdoors or in a well-ventilated area. P280: Wear . P301 + P310: IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. P302 + P352: IF ON SKIN: Wash with plenty of soap and water. P304: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.. P304 + P340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing. P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P312: Call a POISON CENTER or doctor/physician if you feel unwell. P321: Specific treatment (see relevant procedures. on this label). P330: Rinse mouth. P332 + P313: If skin irritation occurs: Get medical advice/ attention. P337 + P313: If eye irritation persists: Get medical advice/attention. P340: Remove victim to fresh air and keep at rest in a position comfortable for breathing. P362: Take off contaminated clothing and wash before reuse. P403: Store in a well-ventilated place. P403 + P233: Store in a well-ventilated place. Keep container tightly closed. P405: Store locked up. P501: Dispose of contents/container to in accordance with local regulation .